A Lieutenant, a Major, and a Colonel were dining with the General in his quarters one evening. The conversation turned to sex and the Lieutenant stated that making love to your wife is 10% work and 90% fun. The Major disagreed and stated that he believed making love to your wife is 40% work and 60% fun. The Colonel then stated that they were both wrong and that the ratio is 80% work and 20% fun. They decided to put the matter to a young Sergeant. "Well, Sir," he began, "I think you are all dead wrong. It must be 100% fun." "Why do you say that?", asked the General. "Because," answered the young sergeant, "if it involved any work at all, you'd assign an enlisted person to do it for you."